Application of liquid desiccant air handling units to lithium battery production workshops

The liquid desiccant air conditioning can realize independent control of temperature and humidity, and has the advantages of avoiding reheating, high energy efficiency, and high air supply cleanliness. The application of liquid desiccant air conditioning to industrial scenarios has significant energy saving effects, but there are few related studies. In this paper, the operation effect of the liquid desiccant air conditioning system applied to a lithium battery production workshop is measured. The results show that under summer conditions, when the humidity ratio of the supply air is 5.3 to 5.8 g/kg, the COP of the system can reach 3.1 to 3.3. To achieve cooling and dehumidification, there is no need to cool the air again after dehumidification. The regeneration temperature of the liquid desiccant air conditioning system is significantly lower than that of the rotary dehumidification air conditioning system, and the operating cost is 41.8% to 44.7% lower than that of the rotary dehumidification air conditioning system.